Transcript for Dramatic New Video of Arkansas School Bus Hijacking Released

Now, to the newly released video and 911 calls of a harrowing ordeal onboard a school bus. A man with a knife, allegedly hijacking the vehicle, packed with children. Leading police in arkansas on a 20-minute chase last month. Kids and driver, safely rescued. Abc's gio benitez has the story. Reporter: Watch the dramatic, newly-released video, captured on police dash cam. Kids escaping a school bus, allegedly hijacked by a knife-wielding man. Just minutes earlier, a frantic woman had dialed 911. We got on the school bus. With a knife, on the bus driver. And is driving down north martin street. Reporter: Police chased that bus, with 11 elementary schoolchildren onboard. The driver describing the terror inside. He flipped the knife out. Shut the door and drive. What do you want to go? What's wrong? Reporter: The 911 caller on the street, tries to keep calm. I'm so scared. It's okay. Just calm down. He was some crazy freaking guy and he had a knife. He wanted me to stop the bus. He wanted me to switch with him while the bus was rolling. I said, no, we can't do that. Reporter: Police in jacksonville, arkansas, chased the bus for some 12 miles, until they stopped it. Get on the ground. Reporter: Those little kids run out, one by one, rushing to safety. Give me your hands. Give me your hands. A little girl told me she was scared. I told her, it was going to be okay. Reporter: Police surround the bus and arrest 22-year-old nicholas miller. Law enforcement telling abc news overnight, miller told them he took the bus because he felt somebody was after him. He pleaded not guilty to 22 charges, including kidnapping. This morning, that bus driver of 20 years, hailed as a hero. She certainly is. Nicholas miller's father told us his son is a great kid who wasn't trying to hurt anyone. But he acknowledged that miller is addicted to drugs. He'll face a judge in january. These kids were on their way to school. That's right. Quick acting. Gio, thank you very much.

This transcript has been automatically generated and may not be 100% accurate.

{"id":20977186,"title":"Dramatic New Video of Arkansas School Bus Hijacking Released ","duration":"3:00","description":"Emergency 911 calls and dash cam show children being rescued with help of bus driver.","url":"/GMA/video/dramatic-video-arkansas-school-bus-hijacking-released-20977186","section":"GMA","mediaType":"Default"}